Final answer:
To evaluate the expression 3w+18/(2x) when w=2x and x=3, substitute the given values into the expression and simplify.
Step-by-step explanation:
To evaluate the expression 3w+18/(2x) when w=2x and x=3, we substitute the given values into the expression:
3w+18/(2x)
= 3(2x) + 18/(2(3))
= 6x + 18/6
= 6x + 3
Now, substitute the value of x=3 into the expression:
= 6(3) + 3
= 18 + 3
= 21
Therefore, when w=2x and x=3, the value of the expression 3w+18/(2x) is 21.